The Quick Read: When you bridge with a home equity line, a lender stacks your old mortgage payment, the line’s payment on its full maximum draw, and the new mortgage payment into one debt-to-income picture, and the type of purchase loan decides whether that picture matters at all.
- A DTI-based purchase loan counts all three payments, so a bridge can push the ratio past a lender’s ceiling.
- A DSCR purchase loan is judged mainly on the new property’s rent against its own payment, so personal DTI plays a smaller role.
- Across the home equity lines Lendmire places, DTI tops out at 50%, and the payment is figured as interest-only on the maximum draw.
- An undrawn line is not free. Many underwriters still count it, or its effect on combined leverage.
- Open the line before you list the old home, and confirm the purchase loan will accept the funds before you draw.
Key Terms Defined
A few terms carry most of this topic. Learn them once and the rest reads easily.
Debt-to-income ratio (DTI): your monthly debt payments divided by your gross monthly income, shown as a percentage.
Combined loan-to-value (CLTV): all loans secured by a home, added together, divided by the home’s value.
Interest-only draw period: the early stretch of a home equity line when your required payment covers interest alone.
Repayment period: the later stretch when the line stops allowing draws and payments include principal, so they step up.
PITIA: principal, interest, taxes, insurance, and any association dues on a property, added into one monthly figure.
DSCR: debt service coverage ratio. It divides a rental’s monthly rent by its PITIA to see whether the property covers its own payment.
Seasoning: the time borrowed or deposited money sits in your account so a lender can trace where it came from.
How large a line the equity supports.
An equity line is sized by combined loan-to-value, occupancy, and credit — not by rental coverage. Switch the occupancy or the credit band and the ceiling moves with it.
Investment-property lines require a 700 minimum credit score; second-home lines start at a 640 minimum and primary-residence lines at 600, and the combined-LTV ceiling steps down as the credit band drops on primary-residence and second-home lines and holds on investment-property lines; the line cap steps down on primary-residence lines and holds at every tier on investment-property and second-home lines.
A debt-to-income ratio above 45% requires 680+ credit. Profiles under 640 are limited to single-family homes. At least 75% of the approved line is drawn at closing. Ceilings, floors, and caps update from Lendmire’s centralized guideline source.
Line estimate
Illustrative estimate only — not a quote, Loan Estimate, approval, or commitment to lend. The rate is an editable assumption; equity-line pricing is variable through both the draw and repayment periods and never converts to fixed. Occupancy and credit drive the ceiling together: an investment property tops out at 70% combined LTV (minimum credit 700, line cap $500,000); a second home tops out at 90% combined LTV (minimum credit 640, line cap $500,000), with the ceiling stepping down as the credit band drops (the cap holds at every tier); a primary residence tops out at 90% combined LTV (minimum credit 600), and its $750,000 maximum line is available only at 75% combined LTV or below with a 700-or-better credit profile (720 on the longer-runway program) and a full appraisal. Lines above $500,000 require a full appraisal. Credit, debt-to-income, property type, and full underwriting review all affect the final line.
The Three-Payment Stack
Bridging means carrying three obligations at once: the mortgage on the home you are leaving, the home equity line you opened against it, and the mortgage on the home you are buying. A DTI-based lender adds all three to your other debts. That is the whole problem in one sentence.
Investors who have walked this path report the same thing. A BiggerPockets discussion on using a HELOC for an investment down payment says you will likely qualify with all three payments counting toward DTI. That matches how most underwriters work.
The old home does not make the stack lighter just because you plan to sell it. Until a sale closes, the payment is real. Some programs can exclude it when there is a documented sale contract or a qualifying lease, but that depends on the program and the paperwork. Do not plan around an exclusion you have not confirmed.
Two Underwriters, Two Different Tests
The lender who opens your line and the lender who funds your purchase are usually different people running different tests. The order they run in matters.
| Step | Who decides | What gets counted |
|---|---|---|
| 1. Open the line | Home equity lender | Old mortgage, line payment, other debts |
| 2. Buy the home | Purchase lender | All three payments, if DTI-based |
| 3. Buy with a DSCR loan | DSCR lender | New property’s rent versus its PITIA |
At step one, the new mortgage does not exist yet. Your ratio looks modest. At step two, the new payment lands on top, and the ratio can jump. This is why a line that approved easily can still sink the purchase loan.
How the Network’s Home Equity Line Counts the Payment
Across the wholesale network Lendmire works with, the home equity line is underwritten to you personally. DTI has a 50% maximum. For credit profiles from 600 to 679, the ceiling is 45%. A ratio above 45% requires a credit profile of at least 680.
The payment used in that ratio is the interest-only payment calculated on the maximum draw. Read that twice. The lender does not use what you owe today. It uses what you would owe if you pulled the whole line.
Two structure details matter for a bridge:
- At least 75% of the line is drawn at closing. You cannot open a large line as a cheap safety net, because most of it is borrowed and accruing cost from day one.
- Pricing on the line floats through the draw period and the repayment period. It never converts to a fixed figure.
Leverage depends on the property you pledge. On a primary residence, the ceiling reaches 90% CLTV only at a 720-or-better credit profile, and on lines up to $500,000. Most bridge borrowers pledge the home they are selling, and that is typically their primary residence. On an investment property, the ceiling is 70% CLTV, and the total line caps at $500,000.
Primary residences and second homes can choose a 3-year interest-only draw with a 17-year repayment period, or a 5-year draw with a 25-year repayment period. Investment lines run the 5-year draw and 25-year repayment structure only. All figures are subject to lender guidelines and full file review.
One more rule bites bridge borrowers. In six of the sixteen states where Lendmire places these lines, a property that is listed for sale, or was listed within the past 60 days, is ineligible. Open the line before you list.
Worked Example: Stacking the Ratios
Run the numbers on a modeled borrower. These are illustrative assumptions, shown as shares of gross monthly income, not market data.
Say the old mortgage takes 20% of income. Other debts, such as a car loan, take 4%. The line’s interest-only payment on its maximum draw takes 9%. The new mortgage takes 22%.
- At the home equity stage: 20% + 4% + 9% = 33%. That passes a 50% ceiling easily.
- At the purchase stage: 20% + 4% + 9% + 22% = 55%. That fails a 50% yardstick.
The same borrower has options. A smaller line cuts the line’s share to 4%. Paying off the car loan removes another 4%. The stack becomes 20% + 0% + 4% + 22% = 46%.
That clears 50%. It still fails 45%, which is the ceiling for a credit profile from 600 to 679. At a 680 score or higher, the same file works. Credit tier and DTI move together, so check both before you sign anything.
A purchase lender sets its own ceiling, and it may differ from the 50% used above. Treat the percentages as a yardstick for your own stack, not a promise about any lender.
Other levers help too. A co-borrower with income lowers the ratio. A larger down payment reduces the new payment. A documented sale contract or lease on the old home may allow an exclusion, depending on the program.
How a DSCR Purchase Treats the Same Bridge
This is the reason many investors with several financed properties switch to DSCR. The test looks at the target property’s rent against its own payment, not at your personal debt stack. The home equity line payment and the old mortgage still have to be paid from your pocket, but they are not the main event in the coverage ratio. Lendmire’s complete DSCR loans guide covers the full qualification picture.
DSCR loans are designed for non-owner-occupied investment properties. Because they are business-purpose investor loans, they are reviewed differently from a standard owner-occupied mortgage. Qualification runs primarily on property-level rental income covering the payment, subject to lender guidelines.
Here is how the typical numbers look across the network:
- Purchase leverage usually lands at 75% to 80% LTV on an investment purchase, with select high-leverage programs reaching 85% at roughly a 700+ score.
- A 1.00 coverage ratio is where many select programs start. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted.
- Credit floors run from 620 in parts of the network, to around 660 for most programs, and 700+ for the strongest leverage.
- Reserves vary by lender, leverage, and loan size. Around six months of PITIA is common.
Clearing 1.00 does not mean the property produces positive cash flow. Repairs, vacancy, management, utilities, and capital expenses sit outside the calculation. If the new rental barely covers its payment and you are also paying a home equity line, your own account carries the gap.
DSCR purchases can be titled in an LLC, subject to lender program eligibility. A home equity line cannot. We will come back to that.
Where the General Rule Breaks
The three-payment rule holds most of the time. These cases bend it.
The undrawn line. Underwriters differ on a zero-balance line. Some count the payment only if you draw. Others still weigh the limit in combined leverage. In the network’s home equity programs, the payment is figured on the maximum draw, so treat an open line as counted.
The payment step-up. The interest-only period ends. Repayment then adds principal, and the payment rises. A bridge that was easy to carry at the interest-only stage can be much harder if the sale drags into repayment.
Variable pricing. Because pricing floats, the cost of carrying the line can move while you wait for a buyer.
A borrowed down payment. Some programs accept home equity funds for a down payment and some do not. A BiggerPockets thread has a broker saying such funds are almost always permissible, while also noting the buyer is effectively financing close to the full price. Ask the purchase lender before you draw.
LLC title. Home equity lines require fee simple or leasehold title held by an individual or a revocable living trust. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title. A property already deeded to an LLC needs a vesting change, or a DSCR cash-out refinance instead.
Ineligible properties. The lines are not offered on manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, or agricultural-zoned properties. A DSCR purchase does not cover manufactured homes, log homes, or barndominiums either.
Credit above the line size. A line above $500,000 is primary-residence only. It needs a credit profile of 700 or better, a 75% CLTV cap, and a full appraisal. The 5-year-draw and 25-year-repayment structure requires a credit profile of 720 or better.
Is 43% Still the Legal Cap?
No. The 43% figure is a legacy number. The CFPB’s General QM final rule removed the 43% DTI limit from the qualified mortgage definition and replaced it with price-based thresholds.
Lenders still have to consider DTI or residual income. They just choose their own ceiling and their own way of counting debts. The CFPB’s ability-to-repay summary also notes that some borrowers above 43% can afford their loans and are better judged individually.
So when a lender quotes you a number, treat it as that lender’s overlay. It is not federal law.
The Order That Protects You
Sequence matters more than any single figure. This is the order most careful investors follow:
1. Get pre-qualified for the purchase first. Ask the purchase lender to run the full stack, including the line you plan to open.
2. Open the line before you list. Some underwriters will not lend against a home that is already for sale, and in six of the sixteen states, a recent listing makes the property ineligible.
3. Draw only what you need, and season it. Keep the funds in your account so statements show where the money came from. Large deposits get questioned.
4. Confirm how the funds are treated. Ask before you draw, not after.
5. Buy, then sell. When the old home sells, closing proceeds pay off the first mortgage and then the line. Keep the timeline documented.
What If the Old Home Does Not Sell?
This is the real stress test, and the DTI math does not capture it. If the sale takes longer than planned, you carry the old mortgage, the line, and the new loan together. Draw periods are interest-only, so the balance does not shrink while you wait.
Ask yourself one question before you start: could your own income carry all three obligations for a stretch longer than you expect? If the answer is a shaky yes, shrink the draw or wait. With a DSCR purchase, add a second question: does the new rental cover itself if tenants take longer to arrive?
There is also an equity cushion to consider. Pledging a home with a line on top of a first mortgage leaves less room if prices dip. A BiggerPockets thread on the cons of a HELOC down payment makes the same point. The numbers work only if the purchase can service both the first mortgage and the line.
Frequently Asked Questions
Does an undrawn HELOC count in my DTI?
Sometimes, depending on the program. In the home equity lines Lendmire places, the payment is calculated as interest-only on the maximum draw, so an open line is counted as if fully drawn. Lenders may count only drawn balances, so ask each one.
Can I still count on selling the old home to drop its payment from DTI?
Only if your purchase lender allows it. Some DTI-based programs exclude the departing home’s payment with a signed sale contract or a qualifying lease. That depends on the program and the documents. Do not assume it until the lender confirms.
Does a DSCR loan ignore my HELOC?
Mostly, in the ratio itself. A DSCR purchase is reviewed primarily on the subject property’s rent against its payment. The lender can still look at your credit and overall picture, and the line payment still comes out of your cash flow.
Can I use an LLC to take out the home equity line?
No. Title must be held by the individual borrower or a revocable living trust. LLCs and several other entities cannot hold title on these lines. A property already in an LLC needs a vesting change or a DSCR cash-out refinance.
What is the maximum CLTV on an investment property line?
It is 70% CLTV on an investment property across the network, with a total line cap of $500,000. The 90% CLTV ceiling applies only to primary-residence lines at a 720-or-better credit profile, on lines up to $500,000.
Next Steps
If you are considering a home equity line and want to see how the numbers work, Lendmire can help you compare HELOC options based on the property, the equity available, credit profile, combined leverage, and your goals. Home equity lines are available in Lendmire’s sixteen full-service states, while its DSCR programs cover 41 markets, including Washington, D.C. Tax treatment can depend on how the funds are used and how the property is held; investors should keep clear records and speak with a qualified tax professional before relying on any deduction.
The investors who bridge well treat the sale date as a guess and the overlap payments as a certainty.
About Lendmire
As a mortgage broker (NMLS# 2371349), Lendmire helps homeowners and real estate investors in its 16 full-service states open home equity lines of credit arranged through wholesale lenders. Lendmire is never the lender; line amounts, ceilings and terms are set by the lender under its guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
Investors who want the broader program framework can review how DSCR loans work.
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References
1. BiggerPockets: Using HELOC for Investment Property Down Payment
2. BiggerPockets: Has Anyone Used a HELOC as a Down Payment for Investment Property
4. CFPB Ability-to-Repay Summary
5. BiggerPockets: Is Using a HELOC for Down Payment of Rental Property
This article is part of Lendmire’s home equity line of credit program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Does a HELOC Payment Count in DTI When Bridging to a New Home? · How a HELOC and a Bridge Mortgage Stack Up in Your DTI · HELOC DTI Rules When the Line Funds a Full Cash Purchase
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
- Mortgage Loan Originator · NMLS# 1129696 · Verify on NMLS Consumer Access
- North Carolina Real Estate Broker · License# 343312 · Verify on NCREC
- North Carolina Insurance Producer · License# 19053198 · Property, Casualty, Life, Health · Verify on NAIC SBS
- Lendmire LLC · Firm NMLS# 2371349 · Verify firm licensure
Disclosure information. Lendmire is a state-licensed mortgage brokerage under NMLS# 2371349. Lendmire is not a depository institution, direct lender, or financial advisor — all loans referenced are placed through wholesale lender partners and are subject to each lender's underwriting standards. This article is provided for general informational purposes and is not a commitment to lend, nor does it constitute financial, legal, or tax advice. Loan programs, terms, rates, and qualification standards change without notice and depend on borrower profile, property type, and the state in which the subject property is located. Equal Housing Opportunity provider. NMLS Consumer Access: nmlsconsumeraccess.org.